Published: Građevinar 78 (2026) 4
Paper type: Original scientific paper
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Stress mechanism of anti-slide pile landslide in earthquake

Based on the geomechanical analysis of typical examples of slope reinforcement and indoor model test analysis, this study analyses the influence of earthquakes on the dynamic response of anti-slide piles supporting gravel soil slopes under different embedment depths and soil strengths. The aim is to reveal the variation law of the earth pressure gauge value behind the pile in the embedded section of anti-slide piles with different embedment depths and seismic time histories. When the embedment depth is relatively deep or the soil strength is relatively large, it may not fully exert the retaining effect of the anti-slide pile, and the construction is difficult and may not be economical. When the embedment depth is relatively shallow or the soil strength is relatively small, the seismic resistance effect of the anti-slide pile is poor, and the supported slope is not very stable. Based on the strength reduction unbalanced transfer coefficient method, relevant research on the embedment depth of anti-slide piles is carried out. An empirical discriminant formula is established for determining the optimal embedment depth of anti-slide piles in soils of different strengths under a certain landslide thrust condition. It further reveals the specific impacts of many sensitive factors, such as the embedment depth, soil water content, and pile-soil properties, on the distribution mode of external loads, and provides a theoretical basis and relevant scientific guiding suggestions for explaining the force mechanism of its support system and research on the specific embedment depth.

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